[ 56.248525][ T21] process_one_work+0x965/0x1690 [ 56.253472][ T21] ? lock_release+0x800/0x800 [ 56.258131][ T21] ? pwq_dec_nr_in_flight+0x310/0x310 [ 56.263536][ T21] ? rwlock_bug.part.0+0x90/0x90 [ 56.268478][ T21] worker_thread+0x96/0xe10 [ 56.273024][ T21] ? process_one_work+0x1690/0x1690 [ 56.278200][ T21] kthread+0x3b5/0x4a0 [ 56.282293][ T21] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 56.287999][ T21] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 56.293717][ T21] ret_from_fork+0x1f/0x30 Warning: Permanently added '10.128.10.47' (ECDSA) to the list of known hosts. 2020/06/03 11:02:23 fuzzer started 2020/06/03 11:02:23 connecting to host at 10.128.0.26:34455 2020/06/03 11:02:23 checking machine... 2020/06/03 11:02:23 checking revisions... 2020/06/03 11:02:23 testing simple program... [ 62.664704][ T6793] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6793 [ 62.673803][ T6793] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.679749][ T6793] CPU: 1 PID: 6793 Comm: syz-fuzzer Not tainted 5.7.0-next-20200603-syzkaller #0 [ 62.688829][ T6793] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.698871][ T6793] Call Trace: [ 62.702166][ T6793] dump_stack+0x18f/0x20d [ 62.706490][ T6793] check_preemption_disabled+0x20d/0x220 [ 62.712120][ T6793] ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.717222][ T6793] ? ext4_ext_search_right+0x2ca/0xb20 [ 62.722658][ T6793] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 62.728356][ T6793] ext4_ext_map_blocks+0x201b/0x33e0 [ 62.733623][ T6793] ? ext4_ext_release+0x10/0x10 [ 62.738462][ T6793] ? down_write_killable+0x170/0x170 [ 62.743743][ T6793] ? ext4_es_lookup_extent+0x41d/0xd10 [ 62.749202][ T6793] ext4_map_blocks+0x4cb/0x1640 [ 62.754052][ T6793] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 62.759233][ T6793] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.764766][ T6793] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.770722][ T6793] ? prandom_u32_state+0xe/0x170 [ 62.775635][ T6793] ? __brelse+0x84/0xa0 [ 62.779766][ T6793] ? __ext4_new_inode+0x144/0x55e0 [ 62.784853][ T6793] ext4_getblk+0xad/0x520 [ 62.789160][ T6793] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 62.794860][ T6793] ? ext4_free_inode+0x1700/0x1700 [ 62.799963][ T6793] ext4_bread+0x7c/0x380 [ 62.804193][ T6793] ? ext4_getblk+0x520/0x520 [ 62.808771][ T6793] ? dquot_get_next_dqblk+0x180/0x180 [ 62.814395][ T6793] ext4_append+0x153/0x360 [ 62.818796][ T6793] ext4_mkdir+0x5e0/0xdf0 [ 62.823105][ T6793] ? ext4_rmdir+0xde0/0xde0 [ 62.827585][ T6793] ? security_inode_permission+0xc4/0xf0 [ 62.833218][ T6793] vfs_mkdir+0x419/0x690 [ 62.837447][ T6793] do_mkdirat+0x21e/0x280 [ 62.841757][ T6793] ? __ia32_sys_mknod+0xb0/0xb0 [ 62.846592][ T6793] ? do_syscall_64+0x1c/0xe0 [ 62.851220][ T6793] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.857184][ T6793] do_syscall_64+0x60/0xe0 [ 62.861600][ T6793] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 62.867466][ T6793] RIP: 0033:0x4b02a0 [ 62.871341][ T6793] Code: Bad RIP value. [ 62.875379][ T6793] RSP: 002b:000000c00004f4b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 62.883776][ T6793] RAX: ffffffffffffffda RBX: 000000c00002c000 RCX: 00000000004b02a0 [ 62.891792][ T6793] RDX: 00000000000001c0 RSI: 000000c000026960 RDI: ffffffffffffff9c [ 62.899871][ T6793] RBP: 000000c00004f510 R08: 0000000000000000 R09: 0000000000000000 [ 62.907837][ T6793] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 62.915805][ T6793] R13: 000000000000004c R14: 000000000000004b R15: 0000000000000100 [ 62.934625][ T6797] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6797 [ 62.944183][ T6797] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.950148][ T6797] CPU: 1 PID: 6797 Comm: syz-executor.0 Not tainted 5.7.0-next-20200603-syzkaller #0 [ 62.959706][ T6797] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.969755][ T6797] Call Trace: [ 62.973108][ T6797] dump_stack+0x18f/0x20d [ 62.977428][ T6797] check_preemption_disabled+0x20d/0x220 [ 62.983064][ T6797] ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.988157][ T6797] ? ext4_ext_search_right+0x2ca/0xb20 [ 62.993592][ T6797] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 62.999290][ T6797] ext4_ext_map_blocks+0x201b/0x33e0 [ 63.004555][ T6797] ? ext4_ext_release+0x10/0x10 [ 63.009391][ T6797] ? down_write_killable+0x170/0x170 [ 63.014649][ T6797] ? ext4_es_lookup_extent+0x41d/0xd10 [ 63.020088][ T6797] ext4_map_blocks+0x4cb/0x1640 [ 63.024919][ T6797] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 63.030095][ T6797] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.035618][ T6797] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.041585][ T6797] ? prandom_u32_state+0xe/0x170 [ 63.046497][ T6797] ? __brelse+0x84/0xa0 [ 63.050630][ T6797] ? __ext4_new_inode+0x144/0x55e0 [ 63.055716][ T6797] ext4_getblk+0xad/0x520 [ 63.060033][ T6797] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 63.065750][ T6797] ? ext4_free_inode+0x1700/0x1700 [ 63.070854][ T6797] ext4_bread+0x7c/0x380 [ 63.075075][ T6797] ? ext4_getblk+0x520/0x520 [ 63.079644][ T6797] ? dquot_get_next_dqblk+0x180/0x180 [ 63.084996][ T6797] ext4_append+0x153/0x360 [ 63.089389][ T6797] ext4_mkdir+0x5e0/0xdf0 [ 63.093699][ T6797] ? ext4_rmdir+0xde0/0xde0 [ 63.098181][ T6797] ? security_inode_permission+0xc4/0xf0 [ 63.103817][ T6797] vfs_mkdir+0x419/0x690 [ 63.108056][ T6797] do_mkdirat+0x21e/0x280 [ 63.112587][ T6797] ? __ia32_sys_mknod+0xb0/0xb0 [ 63.117425][ T6797] ? do_syscall_64+0x1c/0xe0 [ 63.122007][ T6797] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.127970][ T6797] do_syscall_64+0x60/0xe0 [ 63.132384][ T6797] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 63.138255][ T6797] RIP: 0033:0x45bee7 [ 63.142125][ T6797] Code: Bad RIP value. [ 63.146254][ T6797] RSP: 002b:00007fff27640e68 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 63.154650][ T6797] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 63.162605][ T6797] RDX: 0000000000000003 RSI: 00000000000001c0 RDI: 00007fff27641040 [ 63.170567][ T6797] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000003b40 [ 63.178524][ T6797] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 63.187346][ T6797] R13: 00007fff27641040 R14: 8421084210842109 R15: 00007fff2764104c [ 63.269089][ T6798] IPVS: ftp: loaded support on port[0] = 21 [ 63.305253][ T6798] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6798 [ 63.314706][ T6798] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 63.320845][ T6798] CPU: 0 PID: 6798 Comm: syz-executor.0 Not tainted 5.7.0-next-20200603-syzkaller #0 [ 63.330313][ T6798] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.340351][ T6798] Call Trace: [ 63.344242][ T6798] dump_stack+0x18f/0x20d [ 63.348566][ T6798] check_preemption_disabled+0x20d/0x220 [ 63.354192][ T6798] ext4_mb_new_blocks+0xa4d/0x3b70 [ 63.359374][ T6798] ? ext4_ext_search_right+0x2ca/0xb20 [ 63.364810][ T6798] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 63.370525][ T6798] ext4_ext_map_blocks+0x201b/0x33e0 [ 63.375793][ T6798] ? ext4_ext_release+0x10/0x10 [ 63.380631][ T6798] ? down_write_killable+0x170/0x170 [ 63.385908][ T6798] ? ext4_es_lookup_extent+0x41d/0xd10 [ 63.391358][ T6798] ext4_map_blocks+0x4cb/0x1640 [ 63.396211][ T6798] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 63.401403][ T6798] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.407448][ T6798] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.413415][ T6798] ? prandom_u32_state+0xe/0x170 [ 63.418329][ T6798] ? __brelse+0x84/0xa0 [ 63.422473][ T6798] ? __ext4_new_inode+0x144/0x55e0 [ 63.427563][ T6798] ext4_getblk+0xad/0x520 [ 63.431887][ T6798] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 63.437593][ T6798] ? ext4_free_inode+0x1700/0x1700 [ 63.442695][ T6798] ext4_bread+0x7c/0x380 [ 63.446912][ T6798] ? ext4_getblk+0x520/0x520 [ 63.451482][ T6798] ? dquot_get_next_dqblk+0x180/0x180 [ 63.456845][ T6798] ext4_append+0x153/0x360 [ 63.461250][ T6798] ext4_mkdir+0x5e0/0xdf0 [ 63.465571][ T6798] ? ext4_rmdir+0xde0/0xde0 [ 63.470053][ T6798] ? security_inode_permission+0xc4/0xf0 [ 63.475924][ T6798] vfs_mkdir+0x419/0x690 [ 63.480157][ T6798] do_mkdirat+0x21e/0x280 [ 63.484463][ T6798] ? __ia32_sys_mknod+0xb0/0xb0 [ 63.489287][ T6798] ? do_syscall_64+0x1c/0xe0 [ 63.493854][ T6798] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.499809][ T6798] do_syscall_64+0x60/0xe0 [ 63.504216][ T6798] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 63.510081][ T6798] RIP: 0033:0x45bee7 [ 63.513945][ T6798] Code: Bad RIP value. [ 63.517986][ T6798] RSP: 002b:00007fff27640d58 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 63.526719][ T6798] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 63.534677][ T6798] RDX: 00007fff27640da3 RSI: 00000000000001ff RDI: 00007fff27640da0 [ 63.542642][ T6798] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 63.551724][ T6798] R10: 0000000000000064 R11: 0000000000000202 R12: 00000000004185d0 [ 63.559670][ T6798] R13: 00007fff27640d90 R14: 0000000000000000 R15: 00007fff27640da0 [ 63.608676][ T6798] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6798 [ 63.618367][ T6798] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 63.624365][ T6798] CPU: 1 PID: 6798 Comm: syz-executor.0 Not tainted 5.7.0-next-20200603-syzkaller #0 [ 63.633821][ T6798] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.643877][ T6798] Call Trace: [ 63.647175][ T6798] dump_stack+0x18f/0x20d [ 63.651521][ T6798] check_preemption_disabled+0x20d/0x220 [ 63.657161][ T6798] ext4_mb_new_blocks+0xa4d/0x3b70 [ 63.662296][ T6798] ? ext4_ext_search_right+0x2ca/0xb20 [ 63.667768][ T6798] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 63.673754][ T6798] ext4_ext_map_blocks+0x201b/0x33e0 [ 63.679054][ T6798] ? ext4_ext_release+0x10/0x10 [ 63.683903][ T6798] ? down_write_killable+0x170/0x170 [ 63.689166][ T6798] ? ext4_es_lookup_extent+0x41d/0xd10 [ 63.694631][ T6798] ext4_map_blocks+0x4cb/0x1640 [ 63.699469][ T6798] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 63.704657][ T6798] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.710187][ T6798] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.716140][ T6798] ? prandom_u32_state+0xe/0x170 [ 63.721069][ T6798] ? __brelse+0x84/0xa0 [ 63.725199][ T6798] ? __ext4_new_inode+0x144/0x55e0 [ 63.730291][ T6798] ext4_getblk+0xad/0x520 [ 63.734619][ T6798] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 63.740319][ T6798] ? ext4_free_inode+0x1700/0x1700 [ 63.745406][ T6798] ext4_bread+0x7c/0x380 [ 63.749624][ T6798] ? ext4_getblk+0x520/0x520 [ 63.754203][ T6798] ? dquot_get_next_dqblk+0x180/0x180 [ 63.759555][ T6798] ext4_append+0x153/0x360 [ 63.763951][ T6798] ext4_mkdir+0x5e0/0xdf0 [ 63.768259][ T6798] ? ext4_rmdir+0xde0/0xde0 [ 63.772743][ T6798] ? security_inode_permission+0xc4/0xf0 [ 63.778368][ T6798] vfs_mkdir+0x419/0x690 [ 63.782590][ T6798] do_mkdirat+0x21e/0x280 [ 63.786910][ T6798] ? __ia32_sys_mknod+0xb0/0xb0 [ 63.791751][ T6798] ? do_syscall_64+0x1c/0xe0 [ 63.796317][ T6798] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.802286][ T6798] do_syscall_64+0x60/0xe0 [ 63.806682][ T6798] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 63.812549][ T6798] RIP: 0033:0x45bee7 [ 63.816411][ T6798] Code: Bad RIP value. [ 63.820449][ T6798] RSP: 002b:00007fff27640d58 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 63.828831][ T6798] RAX: ffffffffffffffda RBX: 000000000000f878 RCX: 000000000045bee7 [ 63.836790][ T6798] RDX: 00007fff27640da3 RSI: 00000000000001ff RDI: 00007fff27640da0 [ 63.844743][ T6798] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 2020/06/03 11:02:24 building call list... [ 63.852693][ T6798] R10: 0000000000000064 R11: 0000000000000202 R12: 0000000000000003 [ 63.860727][ T6798] R13: 00007fff27640d90 R14: 000000000000f869 R15: 00007fff27640da0 [ 64.079853][ T21] tipc: TX() has been purged, node left! executing program [ 65.535078][ T6779] can: request_module (can-proto-0) failed. [ 66.146087][ T6779] can: request_module (can-proto-0) failed. [ 66.157983][ T6779] can: request_module (can-proto-0) failed.